Dry process stack gas desulfur reaction tower with variation structure

A technology of dry flue gas desulfurization and desulfurization tower, which is applied in the field of dry flue gas desulfurization reaction tower, large-scale tower body design, single-tower multi-bed circulation fluidized large-scale dry flue gas desulfurization process, which can solve the problem of particles Separation of problems such as excessive load to achieve the effect of improving particle internal circulation efficiency, strengthening multi-phase mixing and turbulence intensity, and improving desulfurization reaction efficiency

Inactive Publication Date: 2006-10-25
WUHAN KAIDI ELECTRIC POWER CO LTD
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Problems solved by technology

The invention not only improves the flue gas desulfurization reaction efficiency in the tower, but also solves technical problems such as excessive particle separation load of external particle separation equipment (such as electrostatic precipitator, etc.) that affect large-scale flue gas desulfurization technology.

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  • Dry process stack gas desulfur reaction tower with variation structure
  • Dry process stack gas desulfur reaction tower with variation structure
  • Dry process stack gas desulfur reaction tower with variation structure

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Embodiment Construction

[0032] In the field of dry-process flue gas desulfurization, the present invention proposes the design principle and technical design scheme of the complex variable structure of the desulfurization tower, especially for the single-tower multi-bed fluidization technology adopted in the large-scale dry-process flue gas desulfurization system. On the one hand, through the variable design of the cross-section of each position of the tower body, the fluidized three-phase (flue gas, desulfurizer particles, atomized water particles) can be strongly mixed in each space in the tower, and a high turbulence intensity can be realized to achieve Improve the efficiency of desulfurization reaction, and due to the variation of the cross section of the tower body, the flue gas flow in the tower will form a multi-directional direction, and there will be more recirculation zones in each cross section of the tower, which will greatly improve the internal circulation of desulfurizer particles in the...

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Abstract

The invention proposes a dry flue gas desulfurization reaction tower with a variable structure, which includes a flue gas mixing chamber at the bottom of the desulfurization tower, a flue gas injection device, a fluidization section in the lower part of the desulfurization tower, a main reaction section in the middle of the desulfurization tower, and a desulfurization tower. The upper section of the upper section and the inlet of fresh desulfurizer particles on the tower body, the inlet of external recirculating particles, the atomized water nozzle, and the flue gas outlet, the main reaction section in the middle of the desulfurization tower and / or the upper section of the desulfurization tower adopts a variant structure. The main reaction zone in the middle of the desulfurization tower is composed of several sub-sections of the desulfurization tower with variable structures. The shape of the outlet section of each subsection of the desulfurization tower is different from the shape of the inlet section, and the outlet of the next section is the inlet of the previous section; the main reaction zone in the middle of the desulfurization tower The outlet cross-sectional area of ​​each desulfurization tower subsection is 1.1 to 1.5 times the inlet cross-sectional area.

Description

technical field [0001] The invention relates to a dry flue gas desulfurization reaction tower with variable structure, which belongs to the technical field of flue gas desulfurization, and relates to a large-scale tower body design in the technical field of dry flue gas desulfurization, especially for the circulation flow state of single tower and multiple beds Large-scale dry flue gas desulfurization process. Background technique [0002] The control of sulfur dioxide gas pollution has always been the focus of environmental protection in most countries in the world, and the pollutants produced by it are the largest source of pollution that has caused damage to the ecological environment in my country. At present, it has become the top priority of air pollution control in my country. [0003] At present, the treatment of sulfur dioxide generally adopts the wet lime-gypsum method (W-FGD) in foreign countries. Although the above-mentioned method has a good removal effect, it h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/83B01D53/50
CPCB01D53/83B01D53/508
Inventor 张泽李雄浩林冲张岩丰刘亚丽张颉胡永锋
Owner WUHAN KAIDI ELECTRIC POWER CO LTD
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